<p>Hello, World!</p>
<?php if ($hour >= 13): ?>
	<p>Or should I say good evening? It is already <?php echo $hour ?>.</p>
<?php endif; ?>

<form method="post" action="<?php echo url_for('content/update') ?>">
	<label for="name">What is your name?</label>
	<input type="text" name="name" id="name" value="" />
	<input type="submit" value="OK" />
	<?php echo link_to('I never say my name', 'content/update?name=anonymous') ?>
</form>